Marketing Tag Radar - GA4/GTM Debugger

Local browser diagnostics for marketing measurement tags on the current page.

Marketing Tag Radar is a Chrome extension for teams that need to review browser-visible marketing measurement implementation quickly. Watch measurement fire in real time in the Chrome side panel as you browse. Unlike debuggers that show GA4 alone, it streams GA4, ad tags, Adobe Analytics, dataLayer pushes, and unknown beacons into one live feed — annotating each hit with a quality score, the issues it found, and the user action (click / scroll) that preceded it. Diagnostics run locally in the browser. The extension does not automatically send captured diagnostic data to the developer's servers or third-party servers. Key capabilities: - Live measurement feed: GA4, ads, Adobe, dataLayer, and unknown beacons in firing order, with search, a timeline / by-event toggle, per-tool filters, and inline quality scores and issues - Click-to-fire attribution: see which action (click / scroll / keypress) preceded each measurement hit - Variable drill-down: expand dataLayer and JavaScript global variables level by level, like the Chrome console - One-click diagnostic report: implementation score and fix-now issues, then GA4 (collection routes, session quality, ecommerce/identity), GTM & dataLayer, ad conversions, Adobe, consent/cookies/PII, technology stack, evidence with the firing timeline, and baseline comparison — generated as a single report with a table of contents - Export audit reports as JSON, Markdown, CSV, or a client-ready HTML report The UI is just three tabs — Live, Variables, and Report. Debug day to day in Live; audit the whole implementation with the one-click report. This extension does not claim to prove every admin setting or server-side send. It helps teams quickly understand the marketing-measurement signals that are visible from the browser: network requests, HTML, cookies, dataLayer, JavaScript variables, and captured tag activity.